Z-80 Assembly Programs

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Total Votes : 6

TI_Coder
Advanced Member (Posts: 175)

Z-80 Assembly Programs
10 Oct 2011 12:38:24 pm

Ok, here I will be posting code which I would like help to convert from TI-BASIC to Z-80 Assembly code. The first program which I want to re-write in Assembly is PAZAAK.

Code:




:1→∟SE(1


:prgmSTARTEND


:30→dim(∟P


:If ∟P(6)=0


:Then


:0→∟P(1


:0→∟P(2


:0→∟P(3


:0→∟P(4


:200→∟P(5


:1→∟P(6


:End


:If ∟P(1)<0 or ∟P(1)>5


:0→∟P(1


:If ∟P(2)<0 or ∟P(2)>5


:0→∟P(2


:If ∟P(3)<0 or ∟P(3)>5


:0→∟P(3


:If ∟P(4)<0 or ∟P(4)>5


:0→∟P(4


:Horizontal 55


:Text(0,0,"Pazaak


:Text(9,0,"This is a mock of the Pazaak


:Text(15,0,"mini-game from Star Wars:


:Text(21,0,"Knights of the Old Republic


:Text(57,0,"Version: 8.7.11


:Pause


:Lbl 1


:ClrDraw


:Horizontal 55


:"Menu→Str0


:"Play Pazaak→Str1


:"Manage Cards→Str2


:"Statistics→Str3


:"Instructions→Str4


:"Key Functions→Str5


:"Exit→Str6


:9→∟MENU(2


:6→∟MENU(1


:prgmMENU


:If W=39


:Then


:0→∟SE(1


:prgmSTARTEND


:End


:If W=33


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Key Functions


:Text(9,0,"Key:              Function


:Line(0,‾11,12,‾11


:Line(28,‾11,55,‾11


:Text(18,0,"2ND:              End Turn


:Text(24,0,"MODE:          Pass


:Text(30,0,"DEL:              Stand


:Text(36,0,"1-4:              Select Cards 1-4


:Text(42,0,"CLEAR:      Exit Game


:Pause


:Goto 1


:End


:If W=27


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Instructions


:Text(9,0,"Get as close to 20 as you can


:Text(15,0,"without going over


:Text(27,0,"Win 3 rounds to beat the game


:Text(33,0,"and get a free Saved Card


:Pause


:Goto 1


:End


:If W=21


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Statistics


:Text(9,0,"Saved Cards


:Line(0,‾11,38,‾11


:If ∟P(1)=0


:Text(18,0,"Card 1: None


:If ∟P(1)≠0


:Text(18,0,"Card 1: +",∟P(1


:If ∟P(2)=0


:Text(24,0,"Card 2: None


:If ∟P(2)≠0


:Text(24,0,"Card 2: +",∟P(2


:If ∟P(3)=0


:Text(30,0,"Card 3: None


:If ∟P(3)≠0


:Text(30,0,"Card 3: +",∟P(3


:If ∟P(4)=0


:Text(36,0,"Card 4: None


:If ∟P(4)≠0


:Text(36,0,"Card 4: +",∟P(4


:Text(48,0,"Credits: ",∟P(5


:Text(57,0,"Press CLEAR to reset


:Lbl 2


:getKey→X


:If X=0


:Goto 2


:If X=105


:Goto 1


:If X=45


:Then


:ClrDraw


:Horizontal 55


:"Reset Statistics→Str0


:Text(9,0,"Reset all statistics?


:Text(21,0,"Saved Cards and Credits will


:Text(27,0,"be reset


:"Yes→Str1


:"No→Str2


:2→∟MENU(1


:39→∟MENU(2


:prgmMENU


:If W=45


:Goto 1


:If W=39


:Then


:0→∟P(1


:0→∟P(2


:0→∟P(3


:0→∟P(4


:200→∟P(5


:ClrDraw


:Horizontal 55


:Text(0,0,"Statistics Reset


:Text(9,0,"Your statistics have been


:Text(15,0,"reset


:Pause


:Goto 1


:End


:End


:If X≠45 or 105


:Goto 2


:End


:If W=15


:Then


:ClrDraw


:"Manage Cards→Str0


:"Purchase Cards→Str1


:"Sell Cards→Str2


:2→∟MENU(1


:9→∟MENU(2


:prgmMENU


:If W=9


:Then


:ClrDraw


:Horizontal 55


:"Purchase Cards→Str0


:Text(9,0,"Pay 100 Credits and receive a


:Text(15,0,"random Saved Card?


:"Yes→Str1


:"No→Str2


:2→∟MENU(1


:27→∟MENU(2


:prgmMENU


:If W=33


:Goto 1


:If W=27


:Then


:If ∟P(5)<100


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"You do not have enough


:Text(15,0,"credits to continue


:Pause


:Goto 1


:End


:If ∟P(5)≥100


:Then


:∟P(5)-100→∟P(5


:randInt(1,5→B


:ClrDraw


:"Random Card→Str0


:Text(9,0,"Random Card: ",B


:Text(21,0,"Accept?


:"Yes→Str1


:"No→Str2


:2→∟MENU(1


:33→∟MENU(2


:prgmMENU


:If W=39


:Goto 1


:If W=33


:Then


:Lbl 10


:ClrDraw


:"Save Card→Str0


:Text(9,0,"Which card slot do you want


:Text(15,0,"to save it to?


:"Card Slot 1: (→Str1


:"Card Slot 2: (→Str2


:"Card Slot 3: (→Str3


:"Card Slot 4: (→Str4


:If ∟P(1)=0


:Text(27,47,"Empty)


:If ∟P(2)=0


:Text(33,47,"Empty)


:If ∟P(3)=0


:Text(39,47,"Empty)


:If ∟P(4)=0


:Text(45,47,"Empty)


:If ∟P(1)≠0


:Text(27,47,"+",∟P(1),")


:If ∟P(2)≠0


:Text(33,47,"+",∟P(2),")


:If ∟P(3)≠0


:Text(39,47,"+",∟P(3),")


:If ∟P(4)≠0


:Text(45,47,"+",∟P(4),")


:Text(57,0,"Offered Card: +",B


:4→∟MENU(1


:27→∟MENU(2


:prgmMENU


:If W=27


:Then


:B→∟P(1


:1→C


:End


:If W=33


:Then


:B→∟P(2


:2→C


:End


:If W=39


:Then


:B→∟P(3


:3→C


:End


:If W=45


:Then


:B→∟P(4


:4→C


:End


:ClrDraw


:Horizontal 55


:Text(0,0,"Card Saved


:Text(9,0,"Card saved to Card Slot ",C


:Pause


:Goto 1


:End


:End


:End


:End


:If W=15


:Then


:Lbl 3


:ClrDraw


:"Sell Cards→Str0


:Text(9,0,"Which card do you want to


:Text(15,0,"sell?


:"Card Slot 1: (→Str1


:"Card Slot 2: (→Str2


:"Card Slot 3: (→Str3


:"Card Slot 4: (→Str4


:"Cancel→Str5


:If ∟P(1)=0


:Text(27,47,"Empty)


:If ∟P(2)=0


:Text(33,47,"Empty)


:If ∟P(3)=0


:Text(39,47,"Empty)


:If ∟P(4)=0


:Text(45,47,"Empty)


:If ∟P(1)≠0


:Text(27,47,"+",∟P(1),")


:If ∟P(2)≠0


:Text(33,47,"+",∟P(2),")


:If ∟P(3)≠0


:Text(39,47,"+",∟P(3),")


:If ∟P(4)≠0


:Text(45,47,"+",∟P(4),")


:27→∟MENU(2


:5→∟MENU(1


:prgmMENU


:If W=27


:Then


:If ∟P(1)=0


:Goto 4


:If ∟P(1)≠0


:Then


:1→C


:Goto 5


:End


:End


:If W=33


:Then


:If ∟P(2)=0


:Goto 4


:If ∟P(2)≠0


:Then


:2→C


:Goto 5


:End


:End


:If W=39


:Then


:If ∟P(3)=0


:Goto 4


:If ∟P(3)≠0


:Then


:3→C


:Goto 5


:End


:End


:If W=45


:Then


:If ∟P(4)=0


:Goto 4


:If ∟P(4)≠0


:Then


:4→C


:Goto 5


:End


:End


:If W=51


:Goto 1


:Lbl 4


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"There is no card in this slot


:Pause


:Goto 3


:Lbl 5


:ClrDraw


:Horizontal 55


:Text(9,0,"Card will be sold for 50


:Text(15,0,"Credits


:Text(27,0,"Continue?


:"Yes→Str1


:"No→Str2


:2→∟MENU(1


:33→∟MENU(2


:prgmMENU


:If W=39


:Goto 1


:If W=33


:Then


:If C=1


:0→∟P(1


:If C=2


:0→∟P(2


:If C=3


:0→∟P(3


:If C=4


:0→∟P(4


:∟P(5)+50→∟P(5


:ClrDraw


:Horizontal 55


:Text(0,0,"Card Sold


:Text(9,0,"Card has been sold for 50


:Text(15,0,"Credits


:Pause


:Goto 1


:End


:End


:End


:If W=9


:Then


:If ∟P(5)<10


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"You do not have enough


:Text(15,0,"Credits to play


:Text(27,0,"Reset you statistics to return


:Text(33,0,"to default


:Pause


:Goto 1


:End


:Lbl 6


:ClrDraw


:Horizontal 55


:Text(0,0,"Place Bet


:Text(9,0,"Place a bet


:Text(57,0,"Credits: ",∟P(5


:"Bet→Str0


:21→∟INPUT(1


:prgmINPUT


:expr(Str1→Z


:If Z<10


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"Your bet needs to be at least


:Text(15,0,"10 Credits


:Pause


:Goto 6


:End


:If Z>∟P(5


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"Your bet cannot be higher


:Text(15,0,"than your amount of Credits


:Pause


:Goto 6


:End


:If fPart(Z)≠0


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"Error


:Text(9,0,"Your bet cannot contain


:Text(15,0,"decimals


:Pause


:Goto 6


:End


:ClrDraw


:Horizontal 55


:Text(0,0,"Your Bet


:Text(9,0,"You bet ",Z," Credits


:Text(21,0,"Press ENTER to play Pazaak


:Pause


:If ∟P(1)=0


:1→D


:If ∟P(2)=0


:1→E


:If ∟P(3)=0


:1→F


:If ∟P(4)=0


:1→G


:ClrDraw


:Horizontal 52


:Horizontal 39


:Horizontal 37


:Horizontal 24


:Horizontal 22


:Horizontal 9


:Horizontal 7


:Horizontal 6


:Horizontal 5


:Horizontal 4


:Horizontal 3


:Horizontal 2


:Horizontal 1


:Vertical 3


:Vertical 14


:Vertical 17


:Vertical 28


:Vertical 31


:Vertical 42


:Vertical 52


:Vertical 63


:Vertical 66


:Vertical 77


:Vertical 80


:Vertical 91


:Line(0,55,94,55,0


:Line(0,53,94,53,0


:Line(0,38,94,38,0


:Line(0,23,94,23,0


:Line(0,8,94,8,0


:Line(0,6,94,6,0


:Line(0,5,94,5,0


:Line(0,4,94,4,0


:Line(0,3,94,3,0


:Line(0,2,94,2,0


:Line(0,1,94,1,0


:Line(1,53,1,8,0


:Line(2,53,2,8,0


:Line(15,53,15,8,0


:Line(16,53,16,8,0


:Line(28,62,28,56,0


:Line(31,62,31,56,0


:Line(29,53,29,8,0


:Line(30,53,30,8,0


:Line(42,62,42,56,0


:Line(52,62,52,56,0


:For(A,43,51


:Line(A,53,A,8,0


:End


:Line(63,62,63,56,0


:Line(64,53,64,8,0


:Line(65,53,65,8,0


:Line(66,62,66,56,0


:Line(78,53,78,8,0


:Line(79,53,79,8,0


:Line(92,53,92,8,0


:Line(93,53,93,8,0


:Line(1,7,1,1


:Line(12,7,12,1


:Line(23,7,23,1


:Line(34,7,34,1


:Line(45,7,45,1


:Line(49,7,49,1


:Line(93,7,93,1


:Horizontal 62


:Horizontal 54


:Horizontal 0


:Vertical 0


:Vertical 46


:Vertical 47


:Vertical 48


:Vertical 94


:Text(1,2,"Player


:Text(1,70,"TI Calc


:StorePic 9


:0→∟P(7


:0→∟P(8


:∟P(5)-Z→∟P(5


:Lbl 7


:For(A,9,30


:0→∟P(A


:End


:1→H


:0→I


:0→J


:Lbl 8


:sum({∟P(11),∟P(12),∟P(13),∟P(14),∟P(15),∟P(16),∟P(17),∟P(18),∟P(19)}→∟P(9


:sum({∟P(20),∟P(21),∟P(22),∟P(23),∟P(24),∟P(25),∟P(26),∟P(27),∟P(28)}→∟P(10


:If ∟P(9)>9


:Text(1,38,∟P(9


:If ∟P(9)<10


:Text(1,38,"    ",∟P(9


:If ∟P(10)>9


:Text(1,50,∟P(10


:If ∟P(10)<10


:Text(1,50,"    ",∟P(10


:If ∟P(9)=20 and I≠1


:3→H


:If ∟P(9)=20 and I=1


:Goto 9


:If ∟P(9)>20


:Then


:Text(56,51,"TI Wins


:∟P(8)+1→∟P(8


:RecallPic 9


:Pause


:ClrDraw


:Goto 7


:End


:If ∟P(7)≥1


:Text(1,34,"□


:If ∟P(7)≥2


:Text(1,30,"□


:If ∟P(8)≥1


:Text(1,58,"□


:If ∟P(8)≥2


:Text(1,62,"□


:If ∟P(11)>0


:Text(16,6,"+",∟P(11


:If ∟P(12)>0


:Text(16,20,"+",∟P(12


:If ∟P(13)>0


:Text(16,34,"+",∟P(13


:If ∟P(14)>0


:Text(31,6,"+",∟P(14


:If ∟P(15)>0


:Text(31,20,"+",∟P(15


:If ∟P(16)>0


:Text(31,34,"+",∟P(16


:If ∟P(17)>0


:Text(46,6,"+",∟P(17


:If ∟P(18)>0


:Text(46,20,"+",∟P(18


:If ∟P(19)>0


:Text(46,34,"+",∟P(19


:If ∟P(20)>0


:Text(16,55,"+",∟P(20


:If ∟P(21)>0


:Text(16,69,"+",∟P(21


:If ∟P(22)>0


:Text(16,83,"+",∟P(22


:If ∟P(23)>0


:Text(31,55,"+",∟P(23


:If ∟P(24)>0


:Text(31,69,"+",∟P(24


:If ∟P(25)>0


:Text(31,83,"+",∟P(25


:If ∟P(26)>0


:Text(46,55,"+",∟P(26


:If ∟P(27)>0


:Text(46,69,"+",∟P(27


:If ∟P(28)>0


:Text(46,83,"+",∟P(28


:If D=1


:Then


:For(A,‾56,‾51


:Line(2,A,11,A,0


:End


:End


:If E=1


:Then


:For(A,‾56,‾51


:Line(13,A,22,A,0


:End


:End


:If F=1


:Then


:For(A,‾56,‾51


:Line(24,A,33,A,0


:End


:End


:If G=1


:Then


:For(A,‾56,‾51


:Line(35,A,44,A,0


:End


:End


:If D=0


:Text(56,4,"+",∟P(1


:If E=0


:Text(56,15,"+",∟P(2


:If F=0


:Text(56,26,"+",∟P(3


:If G=0


:Text(56,37,"+",∟P(4


:RecallPic 9


:If H=1


:Then


:Repeat A=21 or A=22 or A=23 or A=45 or A=82 or A=92 or A=93 or A=94


:getKey→A


:End


:If A=21


:Then


:randInt(1,5→B


:∟P(29)+1→∟P(29


:If ∟P(29)=1


:B→∟P(11


:If ∟P(29)=2


:B→∟P(12


:If ∟P(29)=3


:B→∟P(13


:If ∟P(29)=4


:B→∟P(14


:If ∟P(29)=5


:B→∟P(15


:If ∟P(29)=6


:B→∟P(16


:If ∟P(29)=7


:B→∟P(17


:If ∟P(29)=8


:B→∟P(18


:If ∟P(29)=9


:B→∟P(19


:2→H


:End


:If A=22


:Then


:If J=0


:2→H


:1→J


:End


:If A=23


:3→H


:If A=45


:Then


:0→∟SE(1


:prgmSTARTEND


:End


:If A=82


:Then


:If G=0


:∟P(29)+1→∟P(29


:If ∟P(29)=1


:∟P(4→∟P(11


:If ∟P(29)=2


:∟P(4→∟P(12


:If ∟P(29)=3


:∟P(4→∟P(13


:If ∟P(29)=4


:∟P(4→∟P(14


:If ∟P(29)=5


:∟P(4→∟P(15


:If ∟P(29)=6


:∟P(4→∟P(16


:If ∟P(29)=7


:∟P(4→∟P(17


:If ∟P(29)=8


:∟P(4→∟P(18


:If ∟P(29)=9


:∟P(4→∟P(19


:1→G


:End


:If A=92


:Then


:If D=0


:∟P(29)+1→∟P(29


:If ∟P(29)=1


:∟P(1→∟P(11


:If ∟P(29)=2


:∟P(1→∟P(12


:If ∟P(29)=3


:∟P(1→∟P(13


:If ∟P(29)=4


:∟P(1→∟P(14


:If ∟P(29)=5


:∟P(1→∟P(15


:If ∟P(29)=6


:∟P(1→∟P(16


:If ∟P(29)=7


:∟P(1→∟P(17


:If ∟P(29)=8


:∟P(1→∟P(18


:If ∟P(29)=9


:∟P(1→∟P(19


:1→D


:End


:If A=93


:Then


:If E=0


:∟P(29)+1→∟P(29


:If ∟P(29)=1


:∟P(2→∟P(11


:If ∟P(29)=2


:∟P(2→∟P(12


:If ∟P(29)=3


:∟P(2→∟P(13


:If ∟P(29)=4


:∟P(2→∟P(14


:If ∟P(29)=5


:∟P(2→∟P(15


:If ∟P(29)=6


:∟P(2→∟P(16


:If ∟P(29)=7


:∟P(2→∟P(17


:If ∟P(29)=8


:∟P(2→∟P(18


:If ∟P(29)=9


:∟P(2→∟P(19


:1→E


:End


:If A=94


:Then


:If F=0


:∟P(29)+1→∟P(29


:If ∟P(29)=1


:∟P(3→∟P(11


:If ∟P(29)=2


:∟P(3→∟P(12


:If ∟P(29)=3


:∟P(3→∟P(13


:If ∟P(29)=4


:∟P(3→∟P(14


:If ∟P(29)=5


:∟P(3→∟P(15


:If ∟P(29)=6


:∟P(3→∟P(16


:If ∟P(29)=7


:∟P(3→∟P(17


:If ∟P(29)=8


:∟P(3→∟P(18


:If ∟P(29)=9


:∟P(3→∟P(19


:1→F


:End


:Goto 8


:End


:If H=2 or 3


:Then


:If I=1 and H≠3


:1→H


:If ∟P(10)<16


:Then


:randInt(1,5→B


:∟P(30)+1→∟P(30


:If ∟P(30)=1


:B→∟P(20


:If ∟P(30)=2


:B→∟P(21


:If ∟P(30)=3


:B→∟P(22


:If ∟P(30)=4


:B→∟P(23


:If ∟P(30)=5


:B→∟P(24


:If ∟P(30)=6


:B→∟P(25


:If ∟P(30)=7


:B→∟P(26


:If ∟P(30)=8


:B→∟P(27


:If ∟P(30)=9


:B→∟P(28


:If H≠3


:1→H


:End


:If ∟P(10)≥6 and ∟P(10)≤20


:1→I


:If H=3 and I=1


:Then


:Lbl 9


:If ∟P(9)>∟P(10


:Then


:Text(56,51,"You Win


:∟P(7)+1→∟P(7


:If ∟P(7)=3


:Then


:ClrDraw


:∟P(5)+2Z→∟P(5


:"You Win→Str0


:Text(9,0,"You have defeated TI Calc


:randInt(1,5→B


:Text(21,0,"TI offered a Saved Card (+",B,")


:Text(33,0,"Accept?


:"Yes→Str1


:"No→Str2


:2→∟MENU(1


:45→∟MENU(2


:prgmMENU


:If W=51


:Goto 1


:If W=45


:Goto 10


:End


:End


:If ∟P(9)=∟P(10


:Text(56,51,"Tied


:If ∟P(9)<∟P(10


:Then


:Text(56,51,"TI Wins


:∟P(8)+1→∟P(8


:If ∟P(8)=3


:Then


:ClrDraw


:Horizontal 55


:Text(0,0,"You Lose


:Text(9,0,"TI Calc beat you


:Pause


:Goto 1


:End


:End


:RecallPic 9


:Pause


:ClrDraw


:Goto 7


:End


:Goto 8


:End

I know it's SUPER long, but this game is very well worth re-writing... If done correctly... Thanks in advance!

seana11
Super-Expert (Posts: 839)

10 Oct 2011 12:55:36 pm

Do you mean from a programmer's or player's standpoint?

TI_Coder
Advanced Member (Posts: 175)

10 Oct 2011 12:57:06 pm

Both. This is a classic game; so long as you know what it is, it should be worth the hours of conversion. Otherwise, I wouldn't have written it in the first place Wink

seana11
Super-Expert (Posts: 839)

10 Oct 2011 12:59:06 pm

Well, I like asm from a player's standpoint, but basic is so much easier to program.

TI_Coder
Advanced Member (Posts: 175)

10 Oct 2011 01:00:11 pm

Oh, you're referring to the Poll. Lol. But, I'd really like to start re-writing PAZAAK in asm

Ashbad
1
Guru-in-Training (Posts: 2497)

10 Oct 2011 01:57:56 pm

Just one thing for you to consider: usually, with BASIC programs, if it's a cool, fun game, people are instantly impressed. With assembly, it's a lot harder, and people have higher expectations of what a "good game" is. Secondly, do you actually know assembly yet? It's a very good idea to learn it -- but why not do this in BASIC to improve upon your BASIC skills while learning assembly to do something else later?

TI_Coder
Advanced Member (Posts: 175)

10 Oct 2011 02:00:20 pm

I've learned some assembly, and I want to learn more. Re-writing this in asm would help with that. The whole reason that I want to re-write this one is because is starts to slow down in BASIC; slow enough to where you don't want to play anymore

KermMartian
Site Admin (Posts: 64072)

10 Oct 2011 07:21:47 pm

Well, it sounds like an admirable project, but as previous people have warned, I'd make sure your ASM skills are there and that you enjoy the language with a few smaller projects first. If you already have, then excellent, and good luck.

_player1537
Guru-in-Training (Posts: 2983)

10 Oct 2011 07:28:04 pm

I'm with Kerm, there. You might want to play around and make smaller programs to build up your knowledge and then work your way up to a full-fledged game. Maybe you could do a "Count from 1 to 100" program (the first challenge I had to overcome in ASM), or try with a "Move a sprite around" one. You don't want to try to take on such a large project (granted, it could be larger) without fully knowing the language or you'll get frustrated trying to write it. I'd recommend having this handy while you are coding so that you know what an instruction does and does not do, flags it affects, speed of the instruction, size, etc: http://www.zilog.com/docs/z80/um0080.pdf

KermMartian
Site Admin (Posts: 64072)

10 Oct 2011 07:30:07 pm

To expand on that, I have about five documents I use as constant references that you should have too:

(1) TI's System Call reference PDF
(2) TI's TI-83+ SDK PDF
(3) ASM in 28 Days for flags, bit-shifting details, constants, etc
(4) The z80 family manual
(5) z80time.txt, which lists opcode timing

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